Blueberry plant named &#39;C01-43&#39;

ABSTRACT

A new and distinct cultivar of blueberry ( Vaccinium hybrid ) plant named ‘C01-43’, characterized by its combination of bushy plant shape and medium plant growth vigor, evergreen foliage with early timing of vegetative bud burst, lateness of flowering and fruiting, large berry size with oblate shape, firm fruit suited to handling, attractive dark blue fruit color and small picking scar, medium to strong berry sweetness with very weak to weak acidity. This combination results in higher quality fruit with a later availability than other varieties.

LATIN NAME OF GENUS AND SPECIES OF PLANT CLAIMED

Vaccinium hybrid

VARIETY DENOMINATION

‘C01-43’

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct perennial variety of Vaccinium hybrid (Southern Highbush Blueberry), which has been given the variety denomination of ‘C01-43’. Its market class is that of a fruiting plant. ‘C01-43’ is intended for use as fresh fruit for shipping, customer pick and processing markets and as a home garden plant.

The new blueberry cultivar is a selection resulting from seedlings produced in a controlled breeding programme of Vaccinium at Gainesville, Fla., USA in 1999 from a cross of seed parent “F98-325” (unpatented) and pollen parent “F96-102” (unpatented). The new cultivar was discovered and selected as a single plant within a population of blueberry plants in 2001, in a commercial field plantation environment at Corindi Beach, New South Wales, Australia. Selection criteria was a combination of lateness of flowering and fruiting, large fruit size, firm fruit suited to handling, attractive dark blue fruit color and small picking scar. The selection was subsequently evaluated for a number of years at the commercial farms of BerryExchange at Corindi Beach, New South Wales, Australia.

Asexual reproduction of the new cultivar by cutting propagation since 2001 at Corindi Beach, New South Wales, Australia and has demonstrated that the new cultivar reproduces true to type with all of the characteristics, as herein described, firmly fixed and retained through successive generations of such asexual propagation.

The new variety has been primarily compared to the variety ‘Southern Belle’ (U.S. Plant Pat. No. 13,931). In Corindi Beach, New South Wales, Australia the plant growth habit of ‘C01-43’ is ‘bushy’ whereas the plant growth habit of ‘Southern Belle’ is ‘upright’. The plant growth vigor of ‘C01-43’ is ‘medium’ whereas the plant growth vigor of ‘Southern Belle’ is ‘weak to medium’. The time of vegetative bud burst of ‘C01-43’ is ‘early’ whereas the time of vegetative bud burst of ‘Southern Belle’ is ‘late’. The leaf length of ‘C01-43’ is ‘medium’ (48-52 mm) whereas the leaf length of ‘Southern Belle’ is ‘medium to long’ (mean 57 mm). The leaf attitude of ‘C01-43’ is ‘broad acute’ whereas the leaf attitude of ‘Southern Belle’ is ‘acute’. The length of the corolla tube on a flower of ‘C01-43’ is ‘short’ (7-8 mm) whereas the length of a corolla tube on a flower of ‘Southern Belle’ is ‘short to medium’ (8-9 mm). The width of the corolla tube on a flower of ‘C01-43’ is ‘narrow’ (7-8 mm) whereas the width of the corolla tube on a flower of ‘Southern Belle’ is ‘narrow to medium’ (8-9 mm). The pedicel length on a flower of ‘C01-43’ is ‘long’ whereas the pedicel length on a flower of ‘Southern Belle’ is ‘medium’. The anthocyanin coloration of a corolla of ‘C01-43’ is ‘very weak to weak’ whereas the anthocyanin coloration of a corolla of ‘Southern Belle’ is ‘absent or very weak’. Corolla ridges are ‘absent’ on flowers of ‘C01-43’ whereas corolla ridges are ‘present’ on flowers of ‘Southern Belle’. Protrusion of the stigma from the corolla tube is ‘present’ on flowers of ‘C01-43’ whereas protrusion of the stigma from the corolla tube is ‘absent’ on flowers of ‘Southern Belle’. The time of fruit ripening of ‘C01-43’ is classified as ‘late to very late’ whereas the time of fruit ripening of ‘Southern Belle’ is classified as ‘late’. The density of berry cluster on ‘C01-43’ is classified as ‘sparse’ whereas the density of berry cluster on ‘Southern Belle’ is classified as ‘medium’. The depth of the calyx basin on a berry of ‘C01-43’ is ‘shallow’ whereas the depth of the calyx basin on a berry of ‘Southern Belle’ is ‘medium’. The diameter of the calyx basin on a berry of ‘C01-43’ is ‘very broad’ (mean 9.7 mm) whereas the diameter of the calyx basin on a berry of ‘Southern Belle’ is ‘medium’ (mean 4.9 mm). The sweetness of a berry of ‘C01-43’ is classified as ‘medium to strong’ whereas the sweetness of a berry of ‘Southern Belle’ is classified as ‘weak’. The acidity of a berry of ‘C01-43’ is classified as ‘very weak to weak’ whereas the acidity of a berry of ‘Southern Belle’ is classified as ‘weak’. This combination of fruiting attributes results in ‘C01-43’ being a more suitable variety for commercial and home garden use than ‘Southern Belle’.

SUMMARY OF THE INVENTION

The following characteristics of the new cultivar have been repeatedly observed and can be used to distinguish ‘C01-43’ as a new and distinct cultivar of blueberry plant:

1. Bushy plant growth habit

2. Early timing of vegetative bud burst

3. Late timing of beginning of flowering

4. Late to very late timing of fruit ripening

5. Dark blue berry color

6. Berry firmness is firm

7. Picking scar is dry

8. Berry Diameter is large

9. Berry shape is longitudinal cross-section is oblate

10. Berry sweetness is medium strong

11. Berry acidity is very weak to weak

Plants of the new cultivar differ from plants of the parents primarily in late timing of beginning of flowering, late to very late timing of berry ripening, and large berry diameter, whereas the seed parent is mid-season in timing of flowering and berry ripening, with medium to large berry diameters, and the pollen parent is early season in timing of flowering and berry ripening.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs show, as nearly true as it is reasonably possible to make the same in color illustrations of this type, typical flower and foliage characteristics of the new cultivar. Colors in the photographs differ slightly from the color values cited in the detailed description, which accurately describes the colors of ‘C01-43’.

FIG. 1 illustrates a ‘C01-43’ plant in a commercial field planting.

FIG. 2 illustrates ‘C01-43’ a fruiting branch.

DETAILED BOTANICAL DESCRIPTION

The following is a detailed botanical description of a new and distinct variety of a Vaccinium hybrid ornamental plant known as ‘C01-43’. Plant observations were made on plants grown in Corindi Beach, New South Wales, Australia. Unless indicated otherwise, the descriptions disclosed herein are based upon observations made from August to October 2007 of mature ‘C01-43’ plants (age 4 years) grown in outdoor field plantings with day temperatures ranging from 21° C. to 23° C., night temperatures ranging from 10° C. to 12° C., and light levels ranging from 6 to 8 klux. Those skilled in the art will appreciate that certain characteristics will vary with older or, conversely, younger plants. ‘C01-43’ has not been observed under all possible environmental conditions. Where dimensions, sizes, colors and other characteristics are given, it is to be understood that such characteristics are approximations or averages set forth as accurately as practicable. The phenotype of the variety may vary with variations in the environment such as season, temperature, light quality, light intensity, day length, cultural conditions and the like. Color notations are based on The Royal Horticultural Society Color Chart, of The Royal Horticultural Society, London, 2007 edition.

-   Botanical classification: Vaccinium hybrid cultivar C01-43. -   Parentage:     -   -   Parents.—seed parent “F98-325” (unpatented) and pollen             parent “F 96-102” (unpatented). -   Plant:     -   -   Growth habit.—plants are bushy. Growth vigor is medium.             Plant height is 1.9 m. Plant width is 1.2 m. Flower bud             density is medium. Twigginess is low. Time of beginning of             leaf bud burst is early (mid August) when grown as an             evergreen in Australia. Time of beginning of flowering is             late (early September) when grown as an evergreen in             Australia. Time of fruit ripening is late to very late (late             October) when grown as an evergreen in Australia. -   Stem:     -   -   Suckering tendency.—Plants typically have 5-7 major canes             per plant from a base 30 cm in diameter on 6 year old             plants.         -   Canes.—erect to semi-erect with moderate branching; color             greyed orange 198C; 2 year old cane diameter 12 mm, colored             greyed orange 177B, some flaking of bark, current season             wood diameter 3-4 mm, colored yellow green 144C Internode             length on strong, new shoots 15-20 mm.         -   Fruiting wood.—numerous twigs to 10 cm in length.         -   Surface texture of new wood.—smooth.         -   Fully developed leaf.—Length medium 48-52 mm Width broad             approximately 22-28 mm Shape elliptic Color yellow green             137A Intensity of color medium Margin entire Undulation of             margin weak Pubescence of upper side absent Pubescence of             lower side absent Cross sectional profile flat Longitudinal             profile straight Attitude broad acute.         -   Inflorescence.—Length of peduncle to 12 mm Length of pedicel             long 6-8 mm Number of flowers per cluster median 7 Flower             cluster density is medium.         -   Flowers.—Length of corolla tube short (to 8 mm) Width of             corolla tube narrow (to 7 mm) Corolla aperture diameter 4 mm             Color of corolla white 155D Anthocyanin coloration of very             weak to weak Corolla ridges present Protrusion of stigma             absent Fragrance weak Shape urceolate Abundance of pollen             high Calyx (with sepals) diameter 5-6 mm Calyx color green             138A.         -   Productivity.—3 to 4 kg per season from 3-4 year old plants             planted at 3.0 m×0.9 m density.         -   Cold hardiness.—C01-43 has not been grown in all             environments including harsh winter environments. Cold             tolerance is expected to be low. Plants have survived winter             freeze in Australia to minus 8° C. with minimal winter             dieback of young shoots and resultant loss of fruit and             flowers, and poor growth vigor.         -   Chilling requirement.—C01-43 has not been grown in all             environments and is typically grown as an evergreen crop             where chilling hours are not important. C01-43 is classed as             ‘low chill’, typical of Southern Highbush Blueberry             varieties with an estimated chilling requirement of 250             hours (not tested).         -   Leafing.—plants retain leaves year round (at Corindi beach,             NSW Australia) and C01-43 is grown commercially as an             evergreen crop. New leafing occurs in mid September at             Corindi beach, NSW Australia.         -   Fruit.—Unripe fruit color intensity medium Unripe fruit             color 144A Cluster density is sparse Diameter is large (mean             19.4 mm) Weight medium-heavy (approximately 3.0 g) Shape             oblate Attitude of calyx erect Diameter of calyx basin very             broad (mean 9.7 mm) Depth of calyx basin is shallow (to             1.0 mm) Intensity of bloom strong Intensity of blue color of             skin with bloom removed is dark Color of skin 202A Sweetness             when ripe medium to strong Firmness when ripe firm Acidity             when ripe very weak to weak Size of scar is small             (1.0-1.5 mm) Storage quality good.         -   Date of 50% maturity.—approximately 30^(th) October at             Corindi beach, NSW Australia.         -   Fruit development period.—approximately 55 days in protected             cultivation at Corindi beach, NSW Australia.         -   Seed.—Seed color greyed orange 165B Seed abundance in fruit             medium Seed size 1.6-1.8 mm long for fully developed seeds.         -   Tolerance to disease.—C01-43 has shown moderate resistance             to root disease (phytophthora spp) and good resistance to             blueberry rust compared to the commercial variety ‘Southern             Belle. Also demonstrates good resistance to the fruit             disease Anthracnose (Colletotrichum gleosporoides). 

1. A new and distinct cultivar of blueberry plant named ‘C01-43’, substantially as herein shown and described. 